‘x’ as percentage of ‘(x+y)’is same as ‘y’ as percentage of ‘(x-y)’. Then ‘x’ is what percentage of ‘y’. 

1. 100%
2. 241%
3. 50%
4. 141%

Solution for Quant question of the day: 253

400 = 2^4 * 5^2

a and b are two numbers that give lcm 400. 

One of them have 2^4 and others has any power of 2 upto 4

0 4, 1 4, 2 4, 3 4, 4 0, 4 1, 4 2, 4 3, 4 4
which is 9 pairs

Same way one of them have 5^2 and other has any power of 5 upto 5

0 2, 1 2, 2 0, 2 1, 2 2
which is 5 pairs

hence total 9*5 = 45 ordered pairs

but we don’t want ordered pairs, hence 23 pairs.

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Quant Question Of The Day: 253